Mistress Sophia

 is a character in Tyranny.

Background
The proprietor of Lethian's Mistress is an elderly woman who was one of Lethian's mistresses when she founded the Crossing. The tavern and brothel she operates was originally founded as a private place to share drinks with each other. Eventually, it became a place where patrons shared not merely drinks, but each other, and so she became the operator of the finest (and only) brothel at Lethian's Crossing.